Well... I replaced them because I was worried about them.
I just now went to grab them from the place on the shelf where I just knew they were, but it looks like the gremlins got to them.
If memory serves... they will do in a pinch for a while until you get something better. If you need them to get by, lemme know and I will dig around in the shed for them this weekend. If I find them, I will happily send them to you for the low low price of $0.00.
If you would rather wait until you can get a more permanent fix, I completely understand.